DAL400 is operated by DELTA AIR LINES INC between San Francisco International Airport (KSFO) and General Edward Lawrence Logan International Airport (KBOS). The flight is most often flown by a AIRBUS Airbus A321 Neo. Typical block time is 5h 28m. SkyMeter has observed 86 legs of this flight number via ADS-B.

✈
FLIGHTS
86
last 90 days
⏱
AVG DURATION
5h 28m
tracked time
📅
SERVICE PERIOD
05/27/2025 → 08/18/2026
first → last seen
🗺
ROUTES / TYPES
5 / 1
city pairs · airframes
⚠
INCIDENT RATE
0.0%
0 flagged

Routes flown

By count · last 90 days

3
KSFO → KBOS
66
avg 5h 31m · San Francisco → General Edward Lawrence Logan
KHAF → KBOS
15
avg 5h 29m · Half Moon Bay → General Edward Lawrence Logan
KOAK → KBOS
2
avg 5h 38m · Metropolitan Oakland → General Edward Lawrence Logan

Aircraft types

Equipment used on this number

1
A21N AIRBUS Airbus A321 Neo
88

Safety profile

Flagged flights · last 90 days

Go-arounds
0
Unstable approach
0
Rejected TO
0
Stall warnings
0
Overspeeds
0
Runway excursion
0
Counts represent flights with at least one occurrence of each flag, not the total event count. See /incidents for individual events.

Recent flights

Newest 30 operations of DAL400

30
N543DEAIRBUS Airbus A321 Neo
→
08/18/2026
5h 34m
No alerts
Replay Analysis
N544DNAIRBUS Airbus A321 Neo
→
08/17/2026
5h 8m
No alerts
Replay Analysis
N544DNAIRBUS Airbus A321 Neo
→
08/16/2026
5h 22m
No alerts
Replay Analysis
N544DNAIRBUS Airbus A321 Neo
→
08/15/2026
5h 41m
No alerts
Replay Analysis
N533DTAIRBUS Airbus A321 Neo
→
08/14/2026
5h 22m
No alerts
Replay Analysis
N504DZAIRBUS Airbus A321 Neo
→
08/13/2026
5h 18m
No alerts
Replay Analysis
N609DNAIRBUS Airbus A321 Neo
→
08/12/2026
5h 30m
No alerts
Replay Analysis
N609DNAIRBUS Airbus A321 Neo
→
08/11/2026
5h 16m
No alerts
Replay Analysis
N501DAAIRBUS Airbus A321 Neo
→
08/10/2026
5h 43m
No alerts
Replay Analysis
N501DAAIRBUS Airbus A321 Neo
→
08/09/2026
2h 16m
No alerts
Replay Analysis
N537DTAIRBUS Airbus A321 Neo
→
08/07/2026
5h 31m
No alerts
Replay Analysis
N528DEAIRBUS Airbus A321 Neo
→
08/06/2026
5h 34m
No alerts
Replay Analysis
N528DEAIRBUS Airbus A321 Neo
→
08/05/2026
5h 28m
No alerts
Replay Analysis
N528DEAIRBUS Airbus A321 Neo
→
08/04/2026
5h 24m
No alerts
Replay Analysis
N537DTAIRBUS Airbus A321 Neo
→
08/03/2026
5h 27m
No alerts
Replay Analysis
N590DTAIRBUS Airbus A321 Neo
→
08/02/2026
5h 35m
No alerts
Replay Analysis
N528DEAIRBUS Airbus A321 Neo
→
08/01/2026
3h 56m
No alerts
Replay Analysis
N534DTAIRBUS Airbus A321 Neo
→
07/31/2026
5h 26m
No alerts
Replay Analysis
N543DEAIRBUS Airbus A321 Neo
→
07/30/2026
5h 37m
No alerts
Replay Analysis
N543DEAIRBUS Airbus A321 Neo
→
07/29/2026
5h 42m
No alerts
Replay Analysis
N543DEAIRBUS Airbus A321 Neo
→
07/28/2026
5h 44m
No alerts
Replay Analysis
N501DAAIRBUS Airbus A321 Neo
→
07/27/2026
5h 20m
No alerts
Replay Analysis
N599DAAIRBUS Airbus A321 Neo
→
07/26/2026
5h 37m
No alerts
Replay Analysis
N530DEAIRBUS Airbus A321 Neo
→
07/25/2026
5h 31m
No alerts
Replay Analysis
N510DEAIRBUS Airbus A321 Neo
→
07/24/2026
5h 26m
No alerts
Replay Analysis
N507DZAIRBUS Airbus A321 Neo
→
07/23/2026
5h 33m
No alerts
Replay Analysis
N507DZAIRBUS Airbus A321 Neo
→
07/22/2026
5h 11m
No alerts
Replay Analysis
N507DZAIRBUS Airbus A321 Neo
→
07/21/2026
5h 41m
No alerts
Replay Analysis
N536DNAIRBUS Airbus A321 Neo
→
07/20/2026
5h 37m
No alerts
Replay Analysis
N587DTAIRBUS Airbus A321 Neo
→
07/19/2026
5h 26m
No alerts
Replay Analysis
© SkyMeter · All flight data subject to ODbL attribution · Tracked: 90-day window